Electric switch.



No. 864,694. PATENTED AUG. 27. 1907. J. J. ROSS. ELECTRIC SWITCH.

APPLICATION FILED APB.19,1905

3 SHBETSSHEET 1.

PATENTED AUG. 27, 1907.

J. (I. ROSS.

ELECTRIC SWITCH. APPLfUATION FILED APR.19,1905.

3 SHEBTS-SHEET 2.

FAA animx icmesxosw 'PATENTED AUG. 27, 1907.

J. J. ROSS.

ELECTRIC SWITCH.

APPLIUATION rum) APB..19,1905.

3 SHEETSSHEET 8.

opcrzttnr at saith-central key can receive mix...

c call 217m)??? 71 Be it li mini.

1 i troit, lu thr- Cot s imrcut-ting in a c n tclcgmph 0r tithcr iustrum with any mi-e'or' scrim oisets'oi instrumcni .tclcgrnph or other time: withou i; chit, thus eliminating sparking. By this 1:

m coiis'sh tml or working so oi ing through any (we of the X'&ii()t,.-. thc office.

Thc in veiiticn a typewriter,

coming aver m'o'v thu typc each line,

particu that of said Wi t hunt is a a'iiitcrmt Iii the; i "antic View: 0'! the systcr iii, the co. g fl s view t-h ou XL, shmii j tlc ic'vcrs and cm l in elevation; Fig. l a ital elevation 01' thy Fig. 5' 1 top tlOYiiiOil oi the i393; Figs. 5 and are diagrammatic views of the AS s 2, l rt. "cut s ew lil tTiliflCUiS in a iPlQLdPll A :cprcscnts t:

rwitch box and 3?; C(.'11".l iustrumcr t or kt By means of the lower if the operator can YQCQiTC it P;

thc tllXQCiaffl 119 any one cf the instrunirnts 1 3 or 4, as will he: noro hilly hcreinaiter. thrscrihccl.

D represents: the ham: pmpcr having a slot in its top for the passw of the metal Contact piece G notchcs F t0 receive and resin it in ZZ-Iiy dvsii'ctl. pnsi tion. The metal Contact piece (.i carries ihc l'mutllc member C at its outer end and is mounted on the hack of the lever C, which'is. preferably of wood or other sufficiently insulating material. At its inner end G and the engages the spring Contact H, which connects with the 3 lower terminal pbst .l in the lowerenrl of thc box. clearly shown in 2 and Upon the front side of the lever U is the metal bar K having its lower curl engaging the spring arm L cunuectcd. to the lower iv-rniinnl post M. V

'1 have shown in Fig. 2 the lever C pivoted 0n the pin a in the lower end of the b0); and the lower end of the Contact piece G, prci'crubly (a icd fori 'fil'tl and thrcugh the le -er t, to Illill-I-C iny connections. 0, V and P respectively .ri'prcscui am upper, lower and M "rmcdiutc series .ihintiiiig n-wr ts ()ll tho hzgck m ihc hn: ,'t hc up vi i (i being iumici-tczl to thc U-shagici contact box. The t'rcc ends of thc spring mitts R nnrnmily mum-t with thrduvnmzu'iliy prnjcctiug 5W0 with; of

thc pier-cs Q, 11: vlcru l shmvu iu Fir. 2. Q at"? radially :iliuwl with thc l'rcc owls Hi thrspring Pi, fin that Whcu th i-nntn -t 1 1000 (1 is HFllHfl in (m0 hi the notches, tho pin Pmi 1hr hack iii thci'imluct piccc \Vill engage the mrrcspmuiing spring zu'm it and UN? thc sumo out nt' contact with its cunt-art pim'c 2. rcpt W271i u phitc farming a part iii ihc mm Wail (Vitho 1 i:

mi; and in apposite lur-rcto.

amincctcit m unr- 1i th-i t'crmiuzi'is O and the til- 3 throt thc ('miiuct nir-mhirwQ anti R and a c ('i'mlit-t'httl tn thc um'nswmdiug (terminal P.

so that r G iii-mic t'icltiing, may he l'urcc-d {OWQTGS Lhc lcvc-r to pu. t to another and thc tcnsiun all thcyicltiiugpm't will he stillicic'ut t0 orcrcriuic the tcnsit'm. ut' the Spring urnl R and drop the Contact pi cc G into any iictch lcfsircd. By folluwiug the circuits through the diugm'lns shown in Figs. 611ml 7, it will he sot-u that-lion the lkwcrhnndie is not in one of the notch s thc line instrunun the oi'iicc are each in a closed circuit find will operate usual and the ccntril instruincnt connected to the ftllnlnfllS I and M is cut out. When it is desired it- 0 crate the central instrument: to receive a message directed to one of the lintinstruments, the operator simply shifts the lcvcr handle to the notch representing that inst ment, and the piii I will break the circuit. and cut out that instrument, at the same time making the circuit through central instrument that is the circuit will 0:; through the terminal U, the ccntact pic-cc K, the spring iu'm- L, the terminal )1, thence through thct'ccntral instrument to thc tcriniuul J, the spring arm hit-1:. may hc cmplufictl with utlicr- "un one notch.

1. In a switch for electric circuits, the combination with a plurality of closed circuits, of an operating member, means carried by said member for cutting out a portion of one of said circuits and cutting in a connection having terminals carried by said means, and means for moving said member from one to another of said circuits free from all intermediate circuits.

2. In a switch for electric circuits, the combination with a plurality of closed circuits and a normally open circuit, of an operating member, means carried by said member for cutting out a portion of one of said closed circuits and cutting in said normally open circuit, and means for moving said member from one to another of said closed .circuits free from all intermediate circuits.

3. In a switch for electric circuits, the combination with a plurality of normally closed circuits and a normally open circuit, of an operating member, means carried by said member for cutting in said normally open circuit into one of said normally closed circuits, and means for moving said member from one to another of said closed circuits free from all intermediate circuits. K

4. In a switch for telegraph circuits, the combination with a plurality of normally closed circuits, an instrument in each of said closed circuits, a normally open circult and an instrument in said open circuit, of an operating member, means carried by said operating member for cutting out the instrument from one of said normally closed circuits and cutting in the instrument included in said normally open circuit, and means for moving said member from one to another of said closed circuits free from all intermediate circuits.

5. In a switch box for electric circuits, the combination with a plurality of closed circuits passing through said box, a normally open branch connection on each of said circuits 2. terminal for each branch circuit carried by said box, a member carried by the box, means for moving said member from one to another of said closed circuits free' from all intermediate circuits, an independent circuit, and terminals therefor carried by said member and movable therewith to contact respectively with any closed circuits and the branch terminal thereof, for the purpose described.

G. In an electric switch, the combination with a plurality of normally-closed circuits, and a plurality of contacts, cach connected to one line of said circuits respec-- tively, of. a movable member, a normally-open independent circuit, a terminal therefor carried by said member, and being adapted to engage said contacts, a second terminal for said independent circuit yieldingly carried by said assess movable member for permitting a path of movement of said yielding terminal free from said closed circuits, and permitting contactwith any one of said circuits when desired, for the purpose described.

7. In an electric switch, the combination with a plurality of normally-closed circuits and a movable contact'in each of said circuits for breaking the same, of a movable membcr,'a normally-open circuit, a terminal therefor in operative relation to each of said closed circuits, a second terminal for said open circuit adjustably mounted on said movable member and adapted to close said open circuit through a portion of any one of said closed circuits by engaging the movable contact therein, for the purpose de scribed.

8. In an electric switch, the combination with a plurality of normally-closed circuits and a movable contactin each of said circuits for breaking the same, of a movable member, a normally-open circuit, a terminal therefor for connection with each of said closed circuits, a second terminal for said open circuit adjustably mounted upon said movable member and adapted to close said open circuit through a portion of any one of said closed circuits, and subsequently break said closed circuit through said movable contact, for the purpose described.

9. In a switch for electric circuits, the combination wit a casing, of an arm pivoted therein, a rigid arm and a spring arm carried by said ing terminals of a normally-open electric circuit, a plurality of pairs of contacts on said casing eacli pair comprising cooperating rigid and yielding members, a-pin on said spring arm arranged for adjustment to separate the members of any-one of said pairs of contacts, and a plurality of single contacts on said casing arranged for contact with said rigid arm, for the purpose described.

10. In a switch box fol-electric circuits, the combination with a casing having a slot therein, and .a notch in one side of said slot, of a lever pivoted in said box, a normally open circuit, terminals therefor carried by said lever, one of said terminals being resiliently connected to said lever at one end, and having its free end projecting through said slot, the resilience of-said connection tending to move said terminal towards said notch, a normally closed circuit passing through said casing,-cooperatlng spring-"contacts in said circuit adjacent to said notch, a branch connection for said normally closed circuit, a terminal for said branch connection on said casing adjacent to said notch, whereby said resilient terminal will engage one of Said one of said spring contacts when in said notch and the other terminal of said normally open circuit will engage said branch terminal for the purposedescribed.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES J. ROSS.

Witnesses Jas. P. BARRY, EDWARD D. AULT. 

